Transient Kinetics and Quantum Yield Studies of Nanocrystalline α-Phenyl-Substituted Ketones: Sorting Out Reactions from Singlet and Triplet Excited States
作者:Jin H. Park、Tim S. Chung、Vince M. Hipwell、Edris Rivera、Miguel A. Garcia-Garibay
DOI:10.1021/jacs.8b03247
日期:2018.7.5
confidence that a significant fraction of the initial α-cleavage reaction takes place from the ketone singletexcited state, that the originally formed diarylmethyl-acyl radical pair loses CO in the crystal with time constants in the sub-nanosecond regime, and that the secondary bis(diarylmethyl) triplet radical pair has a lifetime limited by the rate of intersystem crossing of ca. 70 ns.
Syntheses and X-ray structure determinations of the isomeric pentaphenylethane tricarbonylchromium(0) complexes, 1-tricarbonylchromium(0) phenyl- 1,1,2,2-tetraphenylethane and 2-tricarbonylchromium(0) phenyl-l,1,1,2-tetraphenylethane
作者:Bijaya Misra、H.E. Zieger、Jon Bordner
DOI:10.1016/0022-328x(88)80341-3
日期:1988.6
(CTC) coordinated pentaphenylethanes (PPE) have been synthesized via organometallic coupling reactions. X-Ray structure determinations have shown the ethane carbon-carbon bond distances in C(1) and C(2) CTC complexes of PPE to be 1.615 (±0.007) and 1.620 (±0.005) Å. Deprotonation of pentaphenylethane with the potassium t-butoxide-n-butyllithium complex gives the pentaphenylethyl carbanion at −70°C in
Configuration determination of (R)-(+)-1,1,2-triphenylpropane. Configuration inversion of (R)-(+)-.alpha.-phenylethyltrimethylammonium iodide by benzhydryllithium
作者:Isaac Angres、Herman E. Zieger
DOI:10.1021/jo00898a018
日期:1975.5
Wieland; Hintermaier; Dennstedt, Justus Liebigs Annalen der Chemie, 1927, vol. 452, p. 10
作者:Wieland、Hintermaier、Dennstedt
DOI:——
日期:——
Gomberg; Cone, Chemische Berichte, 1906, vol. 39, p. 1466,2961